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Inverse-positive interval matrices. (English) Zbl 0628.65027
Several necessary and sufficient conditions are given for inverse positivity of an interval matrix \((A^{-1}\geq 0\) for each \(A\in A^ I)\). An iterative scheme for solving systems of linear interval equations with inverse positive matrices is presented.

MSC:
65F10 Iterative numerical methods for linear systems
65G30 Interval and finite arithmetic
15B48 Positive matrices and their generalizations; cones of matrices
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